odhner



V. J. ODHNER CALCULATING MACHINE Filed Nov. 17 1922 I5 Sheats-$heet 1 Kali/ e I Sept. 30, 1924.

V. J. ODHNER CALCULATING MACHINE Filed Nov. 17 1922 5 Sheets-Sheet 2 Sept. 30, 1924. 1,510,100

V. J. ODHNER CALCULATING MACHINE Filed Nov. 17, 1922 I5 Sheets-Sheet 5 Patented s ept. 30, 1924.

UNITED STATES VALENTIN J'AKOB O'DHNER, OF STQCKHOLM, SWEDEN.

CALCULATING MACHINE.

Application filed November 17, 1922. Serial No. 601,586.

To all whom it may concern:

Be it known that I, VALENTIN JAKOB ODHNER, a subject of the King of Sweden, and resident of Vikingagatan 30. Stockholm, in the Kingdom of Sweden, have invented certain new. and useful Improve ments in Calculating Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to improvements in calculating machines pro ided with calculating discs of that class in which. the crank for turning the calculating discs is provided with or arranged to cooperate with a locking device in order to make possible for the locking in zero position of the crank and thereby of the calculating discs. By such calculating machines the locking device, which mostly is acted upon by a spring, is usually joined to the crank handle. which is slidable in lengthwise direction, that is, at about right angles to the plane of rotation of the crank, whereby said locking device is brought out of active position by the moving outwards of the handle against the action of the spring. In order to keep the locking device in inactive position during the turning of the crank. the handle must during this turning be kept pressed outwards at about right angles to the plane of rotation of the crank, which of course renders the turning more difficult.

The object of this invention is to remove said inconveniences by the crank or the looking devlce or both being so arranged that said locking device may be brought out of active position by pressing the crank handle in a direction towards or away from the centre line of the crank shaft, besides which the locking device or the crank or a part which is joined to the latter is provided with or combined with a guiding device so arranged that it keeps the locking device in inactive position during the turning of the crank except when the crank is in the zero position.

In the accompanying drawings the invention is shown applied to a calculating machine. Fig. 1 is a side view of the machine provided with an embodiment of the invention. Fig. 2 is a section on the line A-A of Fig. 1. Fig. 3 shows a lengthwise section of the machine. Fig. 4 is a section. on the line BB of Fig. 3. Fig. 5 is a lengthwise section of the machine provided with a modified embodiment of the device. Fig. 6 is an end view of the device. Fig. 7 is a section on the line CC of Fig. 5. Fig. 8 shows schematically a combination of both embodiments shown in Figs. 14 and 57. Of the machine only SO much is shown as is necessary for the explaining of the invention.

On a turnable shaft 2 that is j ournalled in the frame 1 of the machine are as usual ar ranged calculating discs 3 situated next to each other, of which discs only two are shown in the drawing. By the embodiment shown in Figs. 1-4 the crank 4 for the turning of the calculating discs, which crank is shown in the drawing fastened directly to the shaft 2, is joined to the handle 6 in such a way that said handle is swingable within certain limits about a pivot 5 in a plane that is about at right angles to the plane of rotation of the crank. The handle 6 is provided with or formed as apart 7 that is acted upon by a spring and situated at a suitable angle to the handle, which part 7 is provided with or arranged to cooperate with a locking device for the locking in zero position of the crank and thereby the calculating discs. By the embodiment shown in the drawings the free end 8 ofthe part 7, acts as a locking device which cooperates with a notch 9 or the like arranged in the frame of the machine. The sectional form of the crank 4 is formed as the letter U so that the part 7 without hindrance may be swung into and out of gear with the notch 9.

The locking device for the crank 4 and the calculating discs, or on the other hand part 7 of the crank. is provided with or combined with a guiding device which is intended to keep the locking device in inactive position during the turning of the crank except when the crank is in zero position. In the drawings the guiding device is, for example, shown combined with part 7. This is provided with a turnable roll 10 or the like which cooperates with a guide on the frame of the machine, which guide has the form of a ring 11 in which is arranged a notch 12 or the like corresponding to the zero position of the crank. The roll 10 may eventually be arranged on the frame and the guide 11 on the part 7 The part 7 which is provided with the locking device 8 is joined in such a way to a locking devicecooperating with-the cam-discs 13 of the machine, that the camlorought outl: V M .and i 2 theuldeking device =i. 3, L l i iti discs are locked or liberated respectively when the {device i8 is brought respectively out of or into gear with the notch 9. For this reason the part 7 is arranged to act upon a movable part whichilr theshown embodiment consists of a sleeveld or the like that is slidable on the shaft 2." The part 7 is provided with-two rollslo or the like diametrically situated and acting as drivers-tor, the sleeve 14, whichrolls' gear drawings, with a disc 22 or the-.ljlike fae tened to the shaft 52,0 which discjisp ovided with shoulders 23 (for the lever. -In the machine are arranged two concentric r ng shaped parts i 24, 25 encir ling the shaft of the calculating discsgof which parts-24L, 25 the latter is fastened to the frame and the part-2 L is turnable and provided with teeth gearing with the toothed sector 19. ,In each 'ofthe rings--24, 25there is anotehQG, .27 01 the like'which notches are intended to cooperate in a certain pos'ition with a roll -29 extending through an aperture 281m the shaft 2, which roll 29 is joined to .alockin}; device .30 for the cam-discs -13.

Accordingto Figsn3 and 4, -the crank 4: and the calculating disc 3 arein-zero position whereby the locking device 8 catches into the notch'in gthe frame, whilejthe guiding roll 10 is in the notch .12 of the ring 11. By this position of theturnable ring, 524 the roll 29 which isjoined to the locking, device 30 ot the camedis cs; is in the two notches 26, 27whi'charesituatedjopposite each other, Figs. .3 and d whereby the locking device is outoif gear withthe camdiscs 13/ brought out of gear withi the notchlil,that

When thelocking .device 8 is isin inactive position, byapplying a pressure'upon the handlefi in a d rection-from 'the centre line fof the 'crank-s'haft the roll '10 is. brought out'irom the notch 4-1-2 in the ring. 11. 'During the same. tjimefthe ;.sleeve 14 is jmoved towards the crank A, whereby :the lever '17, '18 is swnngflto the position gshown in-Figrfi and turns thedisc22and thereby thea toothed ,sector 19 to .the post t-ion indicated with :dash-dotdifls l'IlwElg.

4-. The-toothed sector 19 turns the ringfli, so that the notch 261inth =fi le lbfflfl into the position indicated with dash-dot f4, ,wherchy ,the 111011.329 is lines in {Fifi emiheitw notche 25,

cam-discs 13. During the turning of the Qcraiikfthe 'roll 10 rolls on thering 11 acting as aguide, except when the crank passes the zero position, when the handle 6, as is shown in the drawing, is in or near its lowest position, whereby the weight of the hand'is 'sutiicient for preventing the locking device 8 .irom catching into the notch 9. The roll 29 on the locking device 30 which roll in this position extends very slightly .from the shaft 2, rolls during the turning of the shaft on the inner edges 31 of the rings 2%, 25, so that the lockingdeviceis kept-in gear with the canrdiscs 13 until the ring 24- by the catching into the notch I9 of the locking device 8 is turned by the toothed sector so that the notch 26 is broughtinline with the notch 27.

According to the altered embodiment nshownin hfigs. 5 to .7. the handle '6 provided with the part 7 is slidable within certain limits. in or near the planeof rota- ;t ion of the crank 41-. The roll 10 on the part .7frolls. by the turningof the crank according'tothis embodiment on the inside of the ring 11. The part 7 of the handle is so joined to a slidablepart 32 which is acted upon by a spring; that this part, 32 moves in conjunction with part 7. According to thedrawing, the part 32 which is intended to cooperate with the roll 29 on theguiding device 30, is for this reasonprovided with "a tl rnable-roll 33 or the like, which owing to the spring 341- continually lies against the inside of the ring shaped part 35 of the part 7 of the handle. The ring .25 which isfastened to tl1Q.'flL11'lG and encircles the shaftQ is pierced with anapertureSG for o the part32.

According to Figs. 5 to 7 the locking .deviceS is out of gear with the notch .9, that is in inactive position, whereby the part 32 constitutes the continuation of the inside ofjthe ring 25, so that the roll 29 is kept in the inward position and the lockingrdevice.30 catches intothe cam-discs 13. Duringthe turning of the shaft 2 the roll 29 rollson the inside the ring25 and onthe "part 32 in the notch 36. 1Vhen-thelocking device 8 by the moving upwards of t-hepa-rt ofthe handle is brought into gear with the notch i9,. the'part 32 is also moved inthe same direction owinegto the action of the spring 34, whereby the roll '29 owing to the action of aspring or such like catches into the notch 36 thus made free, so that the locking'device 30 isbrought outof gear the eam discs.

mThe two embodiments shown in Figs.,1 1 ;-and;57 may be cornbined with eachother .in many ways. -ne example of this is shown schematicallyin Fig. :8 where the ,crank handle-according to Figs. .5-7, which n is slidable in the plane of rotation of-vthe .-.erank, is cornbined with .tlietoothed sector 19 and with the two concentrically arranged rings 24, 25 according to Figs. 1-4:. The roll 33 which owing to the action of a spring or the like lies continually against the inside of the ring shaped part of the parts 7 of the handle is joined to or arranged on a swingable lever 38 provided with a toothed segment 39 or the like which gears into a. toothed sector or the like which is fastened to the shaft 20 or is made in one piece with the sector 19.

According to the Fig. 8 the locking device 8 is in inactive position, whereby the locking device 30 catches into the cam-discs 13. lVhen the locking device 8 by the upward movement of part 7 of the handle is brought into gear with the notch 9, the lever 38 is swung on the pin 37 whereby the segment 89 turns the sector 40 and thereby the sector 19 which gears into the toothed ring on 24, so that the notch 26 is brought opposite the notch 27 in the stationary ring. The roll 29 thereby catches into the two notches 26, 27, whereby the locking device is brought out of gear with the cam-discs and liberates them.

The device may of course be changed in many ways within the compass of the invention.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

1. An improvement in calculating machines of the type wherein the crank for rotating the calculating wheels is associated with a locking device for locking the crank in zero position, characterized by the combination of a guiding device adapted to gagement with the cam disks and locking 7 the latter in relation to the calculating wheels when the locking device for the crank is brought to inactive position, the said locking device for the cam disks being brought completely out of gear with the cam disks and liberating them when the locking device for the crank is being brought into active position.

2. A device as: claimed in claim 1 characterized by the provision of means for moving the locking device for the crank out of active position upon application of pressure thereto.

3. A device as claimed in claim 1 characterized in that the crank is mounted for swinging movement in a plane substantially at right angles to the plane of rotation thereof and includes an angularly disposed portion associated with the locking device.

4.1-. A device as claimed in claim 1 characterized in that the crank is mounted for sliding movement.

A device as claimed in claim 1 characterized in that the guiding device includes a guiding member provided with a notch corresponding-to the zero position of the crank, and a member adapted to move over the guiding member and adapted to drop into said notch.

, In witness whereof I have hereunto signed my name.

VALENTIN JAKOB ODHNER. 

